PIC17C42AT View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC17C42AT

High-Performance 8-Bit CMOS EPROM/ROM Microcontroller

Microchip Technology 

PIC17C4X

MOVPF

Move p to f

Syntax:

[label] MOVPF p,f

Operands:

0 ≤ f ≤ 255

0 ≤ p ≤ 31

Operation:

(p) → (f)

Status Affected: Z

Encoding:

010p pppp ffff ffff

Description:

Move data from data memory location

'p' to data memory location 'f'. Location

'f' can be anywhere in the 256 byte data

space (00h to FFh) while 'p' can be 00h

to 1Fh.

Either 'p' or 'f' can be WREG (a useful

special situation).

MOVPF is particularly useful for transfer-

ring a peripheral register (e.g. the timer

or an I/O port) to a data memory loca-

tion. Both 'f' and 'p' can be indirectly

addressed.

Words:

1

Cycles:

1

Q Cycle Activity:

Q1

Decode

Q2

Read

register 'p'

Q3

Execute

Q4

Write

register 'f'

Example:

MOVPF REG1, REG2

Before Instruction

REG1

=

REG2

=

0x11

0x33

After Instruction

REG1

=

REG2

=

0x11

0x11

MOVWF

Syntax:

Operands:

Operation:

Status Affected:

Encoding:

Description:

Words:

Cycles:

Q Cycle Activity:

Q1

Decode

Move WREG to f

[ label ] MOVWF f

0 ≤ f ≤ 255

(WREG) → (f)

None

0000 0001 ffff ffff

Move data from WREG to register 'f'.

Location 'f' can be anywhere in the 256

word data space.

1

1

Q2

Read

register 'f'

Q3

Execute

Q4

Write

register 'f'

Example:

MOVWF

REG

Before Instruction

WREG = 0x4F

REG = 0xFF

After Instruction

WREG = 0x4F

REG = 0x4F

DS30412C-page 128

© 1996 Microchip Technology Inc.

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